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An X-Y graph with plots of observations allows sketching a trend line. What does the slope of the trend line represent
Weegy: A. the rate of change in accuracy of the data (More)
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Expert Answered
Asked 6/3/2013 8:12:35 AM
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you are heating water in a beaker. How would you describe the change in energy and speed of the water molecules as the water gets hotter? A. the energy and speed both increase B. the energy and speed do not change C. the energy increases while the speed decreases D. the energy stays the same while the speed increases
Weegy: The energy stays the same while the speed increases. -describes the change in energy and speed of the water molecules as the water gets hotter. (More)
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Expert Answered
Asked 6/3/2013 10:03:22 AM
0 Answers/Comments
Which of the following is always true when a substance undergoes a physical change? A. the composition changes B. a change in color occurs C. no new substance is formed D. its specific gravity remains the same
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Not Answered
Updated 314 days ago|10/19/2015 7:01:22 AM
1 Answer/Comment
"No new substance is formed" is always true when a substance undergoes a physical change.
Added 314 days ago|10/19/2015 7:01:22 AM
This answer has been added to the Weegy Knowledgebase
A substance that readily burns when it comes into contact with a flame has the chemical property of _____. A. toxicity B. stability C. reactivity D. combustibility
Question
Not Answered
Updated 282 days ago|11/19/2015 5:51:32 PM
1 Answer/Comment
A substance that readily burns when it comes into contact with a flame has the chemical property of Combustibility.
Added 282 days ago|11/19/2015 5:51:32 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Janet17 [11/19/2015 5:57:03 PM]
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